Draft-gear for railroard-cars.



PATENTBD JAN. 23,` 1906.

H. M. 'PFLAGBR DRAFT GEAR FOR RAILROAD CARS.

APPLICATION FILED NOV. 9, 1905.

2 SHEETS-SHEET 1,

No. 810,805. PATENTED JAN. 23, 1906. H. M. PFLAGER.

DRAFT GEAR FOR RAILROAD CARS.`

APPLIoATIoN FILED Nov. 9, 1905.

2 SHEETS-slum z.

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@awp/Mw 7 44d W E STATES PATENT j ogriguoE,-`

HARRY M. rrLacnaa,y or erreurs, nissounr.

' i @Bamm-GEAR rFoiaeAlLnroADoAss.

ivo; erases.-

' -Specication of Letters Patent.

Patented' Jan. es, 1906.

Application nea Novmber 9, 1,905. serial No. 286,576.

-To rif/ZZ whom-'tt 7n/.dy con/cern: l

Beit known that I, HARRY M. PFLAGER, a citizen of the UnitedStates,residing at St;

Louis, inthe State of Missouri, have invented a new and usefulImprovement in Draft-Gear for Railroad-Cars, of which the'following is aspeciiication. 4 e f My invention, which is in the nature of animprovement on that for which Letters Pat- `ent of -the 'United Stateswere granted to me January 10, 1905,`No. 779,559, for an improvement indraft-gear for railroad-cars, relates to that class 'ofl draft-gearinwhich the draw-bar,

with its lfollower-plates and draft-springs, is combined directly withthe body-bolster without the use' of draw-timbers-and sepa rate housingsfor the springs with their respective fastenings as ordinarilyconstructed, and has for its object to simplify the construction and toapply the strain of the draftgear directly tothe principal member or,

strongest part of the body-bolster.

The invention consists in features of novelty as hereinafter describedand claimed, referencebeing had to the accompanying drawings, formingpart of `this specification, whereo'nr Figure 1 is a top plan view of myimproved draft-gear as ap lied to a car-bodybolster;

l middleportion of the bolster combined thereelevation Fig. 7,

within elevation corresponding to Fig.- 2 and Fig.v 6, an inner end viewofthe draft-gear, showing the middle vportion of, the bolster combinedtherewith in corresponding side a horizontal section through the middleportion of the bolster cor responding to Fig. 3,\omitting thedraft-gear;

l'and Fig.A 8, a vertical longitudinal section .through the draft-gearon hne 8 8 in Fi 3, omittlng the"draftsprings and bu 4 gsprings L'keletters and numerals of reference del V note like parts in all thefigures.

o; represents the car-body bolster, which in the present case ispreferably made' I-shaped in cross-section of castlsteel'fintegralthroughout and secured to the car-sillsb (indicated l by broken lines inFig. 1 )A bybolts (not shown) Awhich pass through the holes c in thebolster l a) and through the sills 7J in the usual 'Wellknown manner.

'd is the drawbar, having a suitable draw-v head 1 and coupler 42,supported at their front portions, respectively, bycarryirons 3 and 4:.'

The draw-bar d is formed or provided at its inner end with a head d',which is arranged horizontally across or T-wise thereto with its outer`face 5 opposite to the front side of the bolster a. In the face 5 areformed two pref l erably cylindricalv pockets- -or housings 6, which areparallel to each other in the lsame horizontal plane and equidistantfrom the `longitudine center of the draw-bar d. From the front side,referably of the middle up-y right web (or ot er suitable body member)7,

of the bolster-a project two cylindrical pockets or housings 8, whichare similar and oppov site tothe housing 6 and in central alinementtherewith, the sp ace or-"clearance between the face 54 of the head dand the face 9 of the housing. 8 being equal to the Vbufling play of thedraw-b ar d. Within the housings 6 and 8 are placed the buingesprings10, which 'bear at their ends, respectively, a ainst the bottoms of thehousings 6 and 8 in t e normal position `of the draw-bar d, as seenparticularly in Fig. 3.

From each end of the head d* project, preferably, two parallelhorizontal Websorilanges 11, which extend therefrom along the/sides of"the draw-bar d and strengthen the junction therewith of the head d. thewebs or Hanges I1, is preferably integral with the draw-bar d, as shown,but maybe of separate vconstruction and bolted or other- Between thelwise fixed thereto, if desired. `Webs or flanges 11, beyond the ends ofthe head d', are jointed by pins 12 the free ends of Thehead d, with4ayoke e, which is preferably T-shaped in cross-section and arranged inthe same plane` with the draw-bar d and 'its head d', the arms IOC orsides13 of the yoke e being adapted to slide through openings 14,-formedtherefor transverselythrough the middle web (or other member)I 7 of thebolster a, or, if desired, the

yoke e ma be jointed directly to the ends or`l the head or to lugsthereon.

On the inside face or edge of the bar 15,

which connects the arms or sides 13 of the yoke @together at-their otherends, is formed (or iiXed,) preferably integrally therewith a 1 block16, in the face 1.7 'of which opposite to the rear side .of the bolster'dare formed twc IIO cylindrical pockets oryhousings 18, which areparallel to each other' m-the same horizontal plane and 1n centrallongitudinal alinement -,to the 'housings 6 and 8, before described,

whilelroinjthe rear side ofthe-middle vWeb- (or other member) 7 foi thebolster a project two cylindrical pockets or'housings 19, which ner tothe bufiingsprinfrs 10.

For maintaining the horizontal position oiv the draw-bar d with its headd and the'block 16 with the yoke e during their-forward and rearwardmovements the bottom m'ember'(or strongest partof the bolster (insteadof' to' thereabout) of the bolster a, is formed withvoutwardly-projecting flanges or, brackets 21 i on which the head d 'of'the Adrawbar. d .fand

In operation when pullii'iggon the draw,

bar d the block 16, with thefyoke e,isdrawni forward, and in so doingcompresses the drait-springs'lO between ythe block- *16' andf the middleweb 7 of the bolsterfa on its rear `side and simultaneouslyv releasesthe :head'cl ofthe draw-bar d from t'hebuiiing-springs 10, which liefree' within their housings 6` and-8.

In the builing operation of the draw-bard its" head el is pushedrearward, so as to'compres's the bu'lling-springs 1() against thefronti-side of the web 7' of the bolster a and at. the same time releasethe block 1,6 of the yoke e from the draft-springs 10', which lie idleWithin theirhousings 18 and 19. A

By this invention the usual follower-platesare dispensed with and thepressure ofthe springs applied directly to the main body or i'langes orabutments at the outer edO'es of the bolster, asin the said patent) andthence uniformly to the entire series of car-sills b,

thereby diminishing the danger of the draftgear collapsing in the caseof suddenshock thereto.

It is to be `here noted that when the limitsprings is reached furthercompression there-4 of is prevented by the faces 5 and 9 and 17 20 oftheir respective housings bearing against pocket 22', between the l stera, whereby, ifdesired, an a ditional buiil each other, and therebydistributing the strain of the draft-gear over a larger surface of thebolster and that between the housings 6 of the head d is formed a middlepocket 22, which is opposite to a similar ousin s 8 of the boling-spring may be placed 'therein and similarly With respect 'to themiddle pockets 23 23 between the housings 18 and 19 of the block 16 andbolster a, respectively.

I do not limitvmyself to the particular form and material of the bolstera described and shown on the drawings, as the same arrangement ofidraft-gear is applicable to other forms of body-bolster by modifying itsconstructive details accordinfrly, care being taken inv all casesto-'forni the ousings 8 and 19 for the corresponding ends of the buHingand draft s rings, respectively, in the lbody g g oriprin'cipa resistingmember of the bolster the block 16 of the 'yokele bearand ride Vatfall'l"f orinsuring Va uniform distribution of the strain ofthe draft-gear anddurability of its parts. I

.What I claim as my invention, and desire front sidev of the bolster,hinting-springs" movable in and between housings therefor in the face ofthe cross-head, and in the front side ofthe bolster, a'yok'e jointed atits ends to the cross-head andslidable throughthe bol-v stertransversely thereto, a blokstraddled by thesaidyoke opposite to therear side of the bolsterand adapted to be engaged by the said yoke,draft-sprin sfmovable in andV between-housings there or in the face ofthe said block, and in the rear side of the bolster, flanges projectingfrom the bolster beneath the said block and cross-head respectively,

and means for securing the bolster to the ca body, substantially asdescribed.

In testimony whereof I have signed my name to this specificationiin the`presence of roo two subscribing Witnesses. p

HARRYl M. PFLAGER.

Witnesses: Y

EDWARD W. FURRELL, ELIZABETH C; ToUnEY.

